SZMMSZ4683T1G

The SZMMSZ4683T1G is a 3V Zener diode from On Semiconductor's SZMMSZ4xxxT1G series, designed for voltage regulation applications. It offers a nominal zener voltage of 3V with ±5% tolerance and a maximum power dissipation of 500mW on FR-4 or FR-5 boards. The device features a low forward voltage of 900mV at 100mA and a reverse leakage current of 800nA at 1V. It is housed in a compact SOD-123 surface mount package, suitable for high-density PCB designs. The SZ prefix indicates automotive qualification, meeting AEC-Q101 standards and PPAP requirements. The diode is Pb-Free and RoHS compliant, with a flammability rating of UL 94 V-0. It has an ESD rating of Class 3 (>16 kV) per Human Body Model, enhancing robustness in handling. Thermal resistance is 340°C/W junction-to-ambient and 150°C/W junction-to-lead, with an operating temperature range of -55°C to +150°C. Typical applications include voltage clamping, overvoltage protection, and reference voltage generation in automotive and industrial electronics.